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Finding the Fourth Proportional to 264,455.89, 396,676.06 and 74,915.89

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Solution

The fourth proportional to 264,455.89, 396,676.06 and 74,915.89 is: 112,371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,455.89 : 396,676.06 = 74,915.89 : x
  2. Step 2: Convert to fraction form
    264,455.89/396,676.06 = 74,915.89/x
  3. Step 3: Cross multiply
    264,455.89x = 396,676.06 × 74,915.89
  4. Step 4: Simplify right side
    264,455.89x = 29,717,338,897.61
  5. Step 5: Solve for x
    x = 29,717,338,897.61/264,455.89
  6. Step 6: Final answer
    x = 112,371.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.